Door stop



June 2, 1964 H. H. WESSEL DOOR STOP Filed March 2, 1962 2 Sheets-She'ec l C) :I INVENTOR. l: gig Queer/Pr wessa ATTORN'VS- Jllne 1964 H. H. WESSEL 3,135,012

DOOR STOP Filed March 2, 1962 2 Sheets-Sheet 2 INVENTOR. HERBERT H. WESSEL ATTORNEYS- United States Patent Ofiice 3,135,012 Patented June 2, 1964 Pennsylvania Filed Mar. 2, 1962, Ser. No. 177,029 Claims. (Cl. 16-137) This invention relates to a door stop, and more particularly to an adjustable door stop which is adapted to be pivotally secured to a hinge pin of a door.

Door stops of this general type are known. They possess a number of advantages over the conventional door stop which is permanently secured to the wall behind a door. For instance, when the wall is concrete, it is sometimes difiicult to secure a permanent door stop thereto. There is also an ever present danger of tripping over a door stop secured to a baseboard near a door. Further, when furniture is placed behind a door, it is possible with door stops of this type to prevent the door from opening to an extent which would be suflicient to hit the furniture.

The door stop of this invention possesses a distinct advantage over the adjustable hinge mounted door stops previously used. That is, the door stop of the invention is radially adjustable, whereby flat surface contact will always be obtained between the rubber bumpers of the door stop and the wall and door. The flat surface con tact will result in a better cushioning effect than the edge contact which was obtained when using the adjustable door stops of the prior art.

It is an object of this invention to provide an improved door stop which can be pivotally mounted on a door hinge.

It is another object of this invention to providean adjustable door stop that promotes flat surface contact throughout its entire range of adjustment.

It is a further object of this invention to provide a door stop that is radially adjustable.

It is yet a further object of this invention to provide a door stop that is adjustable to permit a door opening of from 70 degrees to 110 degrees.

These and other objects of this invention are accomplished by providing an adjustable door stop comprising a primary element and a secondary element, said primary element comprising a pivot arm having an opening formed in one end thereof, an arcuate guide for said secondary element, and a door bumper, said secondary element slidingly engaging said primary element and having means engaging said arcuate guide, said secondary element having a door bumper thereon facing in a direction radially opposite to that of the door bumper of the primary element, and means for adjustably securing said primary element to said secondary element.

Other objects and many of the attendant advantages of this invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:

FIG. 1 is a partial, perspective diagrammatic view illustrating the use of the door stop of this invention on a door;

FIG. 2 is a top plan view, partially in section, illustrating the door stop of this invention in its most compact form;

FIG. 3 is a bottom plan view illustrating the door stop of this invention in its expanded form;

FIG. 4 is an enlarged sectional view taken along the line 4-4 of FIG. 2, and showing a door hinge in phantom;

FIG. 5 is a sectional view taken along the line 55 of FIG. 4;

FIG. 6 is a perspective view of a modified form of the door stop of this invention;

FIG. 7 is a top plan view illustrating the door stop of FIG. 6 in its most compact form;

FIG. 8 is a bottom plan view, partially in section, illustrating the door stop of FIG. 6 in its most expanded form; and

FIG. 9 is an enlarged sectional view taken along the line 9-9 of FIG. 7.

Referring now in greater detail to the various figures of the drawings wherein similar reference characters refer to similar parts, a door stop embodying the present invention is generally shown at 10 in FIG. 1. As seen in FIGS. 2 and 3, device 18 basically comprises a primary element 12 and a secondary element 14.

Primary element 12 includes a pivot arm 16, having a circular hole 18 provided in one end thereof. For purposes of ornamentation, grooves 20 and 22 are provided in the top and bottom surfaces of the pivot arm, respectively, leaving upstanding ridges 24 and 26.

Integral with pivot arm 16 and extending outwardly therefrom is an ear 28. The portion of ear 28 immediately adjacent the pivot arm is provided with a recess 30 having a horizontal upper wall 32 and dependent vertical walls 34 and 36 (see FIG. 4). It is noted that recess 30 is arcuate in shape, and walls 34 and 36 are tantamount to arcs of a circle having their centers at the center of hole 18. An arcuate elongated slot 38 is provided in approximately the center of recess 30. Surrounding the slot 38 are a plurality of equally spaced, downwardly projecting teeth 40.

The top portion 42 of ear 28 extends upwardly and outwardly from recess 30. Top portion 42 is provided With grooves 44 and 46 in its upper surface for the purpose of ornamentation. Lower surface 48 is horizontal and smooth. Secured to the outermost edge 50 of ear 28 1s a lug 52. Lug 52 basically comprises a central neck 54, a circular flange 56 which abuts edge 50 and an outer bevelled tip 58 which is circular and slightly wider than neck 54. Frictionally telescop'ed over tip 58 is a rubber bumper 69.

Secondary element 14 slidingly engages primary element 12. Secondary element 14 includes a tab 62 which has an upwardly projecting shoulder 64 which is received in recess 39 of the primary element 12. Shoulder 64 includes arcuate walls 66 and 68 which have the same radlus of curvature as walls 34 and 36 of the primary element. The top surface 70 of shoulder 64 includes a plurality of equally spaced upwardly projecting teeth '72. Teeth 72 are identical in size and spacing to teeth 40 of the primary element. An arcuate elongated slot 74 extends through shoulder 64 and tab 62. Slot 74 is identical in shape and orientation to slot 38. Thus, when the secondary element slidingly engages the primary element, one slot can be superimposed on the other to form a continuous slot through both elements.

An ear 76 is integral with, and projects upwardly and outwardly from tab 62. The upper surface 78 of ear 76 is horizontal and smooth and slidingly engages lower surface 48 of the primary element. The lower, or outer, surface of ear 76 is provided with a groove 82 for ornamental purposes. A rubber bumper 84 is secured to outer edge 86 of ear 7 6 by lug 88 in the same manner 3 as bumper 60 is secured to the primary element. The secondary element is secured to the primary element by means of round head bolt 90 which passed through superimposed slots 38 and 74. The bolt is secured in place by an associated hexagonal nut 92.

The use of door stop is illustrated in FIG. 1. The door stop is pivotally mounted by removing hinge pin 94, aligning hole 18 of pivot arm 16 with the hinge joint andreplacing hinge pin 94 through said hole and said hinge joint. Door stop 10 is then free to pivot around hinge pin 94. In FIG. 4, a hinge 96 is shown in phantom with the hinge pin 94 placed therethrough and door stop 10 operatively in place.

The amount of opening of door 98 is limited by door stop 10. When bumper 60 hits wall 100, bumper 84 will hit the door. Thus, the amount of door opening can be controlled by the relative displacement of bumper 60 to bumper 84. In FIG. 2, door stop 10 is shown in its most compact position. Thus, when using this-position adoor can be open approximately 110 degrees from its closed position. In FIG. 3, door stop10 is shown in its most expanded position. In this position the door can be open approximately 70 degrees.

The. adjustment of door stop 10 from the position shown in FIG. 2 to the position shown in FIG. 3 or to any intermediate position, is easily accomplished. Bolt 90 is turned counterclockwise as viewed in FIG. 2, thereby loosening the secondary element with respect to the primary element. The secondary element is then free to slide alongthe arcuate path provided by recess of the primary element. When the desired position of the two elements relative to each other is reached, the elements are then secured in place by tightening bolt 90 by rotating it in a clockwise direction. It should be noted that the two elements are maintained in any set location by means of teeth and 72. When bolt 90 is tightened, these teeth engage each other and the secondary element is no longer free to move along its arcuate path. The constant jarring of the two elements by the opening of the door will not dislodge them in view of the secure grip obtained by the teeth. It should be noted that since the primary and secondary elements move relative to each other in an arcuate path, fiat surface contact ofbumper 60 against the wall and bumper 84 against the door will always be maintained.

It should also be notedthat secondary element 14 is provided with an arcuatedownwardly extending wall 102 which is integral with tab 62. Wall 102 extends across the entire width of secondary element 102 and is located approximately a distance equal to one half the width of nut 92 from the center line of slot 74 (see FIG. 3). Wall 102 is used to prevent any rotation of nut 92 when bolt 94 is turned. Thus, upon turning of the bolt, the edge of nut 92, which is adjacent to the wall 102, will strike the wall, thus preventing further rotation. In this way, the amount of opening of the door stop can be varied solely by the use of a screwdriver, and no wrench or other grasping means is needed for the nut.

A modified form of the door stop of this invention is generally shown at 110 in FIG. 6. Device 110 basically comprises a primary element 112 and a secondary element 114.

Primary element 112 includes a pivot arm 116 having a circular hole 118 in one end thereof. Pivot arm 116 is provided with ridges 120 and 122 on the top and bottom sides thereof, respectively, for the purpose of ornamentation. Extending across the other end of pivot arm 116, and integral therewith, is an ear 124. An upstanding arcuate wall 126 extends along the outer perimeter of car 124. A ridge 128 is provided on the ear for purposes of ornamentation. An arcuate elongated slot 130 is provided in ear 124. Slot 130 is the same radius of curvature as upstanding wall 126. Substantially the entire undersurface of ear 132'is provided with a plurality of equally spaced downwardly projecting teeth.

slot 130. The lower surface of tab is provided with.

a downwardly projecting vertical wall.146.

Projecting outwardly from tab 140 and integral therewith is ear 148. The lower surface of ear 148 is grooved at 150 for ornamental purposes. The upper surface is likewise grooved at 152, leaving upstanding wall 154 along the outer perimeter of the ear. Wall 154 terminates adjacent tab 140 in an elongated, arcuate edge 156. Secured to the outer edge 158 of ear 148 is a lug 160 and accompanying rubber bumper 162.

Secondary element 14 is releasably secured to primary element 12 by means of round head bolt 164 and accompanying hexagonal nut 166. Door stop 110 operates in substantially the same manner as door stop 10. Adjust ment is made by loosening nut and bolt 164 and 166 and sliding secondary element 14 relative to primary element 112. It should be noted that primary element 112 has no arcuate recess as in embodiment 10. However, door stop 110 is still radially adjustable since elongated arcuate edge 156 is used to follow upstanding arcuate wall 126 on the primary element (see FIG. 7). Furthermore, the interfitting of teeth 132 and teeth 142 will always insure the correct radial alignment of the primary and secondary elements. In this embodiment, downwardly extending wall 146 serves the same function as wall 102 of embodiment 10. That is, the edge of nut 166 will strike the wall when bolt 164 is rotated, thus obviating the necessity of a wrench when adjusting the door stop.

Door stop 110 is adjustablefor door openingsof approximately 45 degrees (see FIG. 8) to 90 degrees-(see FIG. 7).

The door stop of this invention can be made from awide variety of materials, such as plastic, aluminum, steel, brass or many other alloys.

Obviously many modifications and variations of=the present invention are possible in the light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims, the invention maybe practiced otherwise than as specifically described.

What is claimed as the invention is:

1. A door stop comprising a primary element and a secondary element, said primary element comprising a.

pivot arm having an opening formedin one end thereof, an arcuate wall at'the end opposite said one end for guiding said secondary element, said wall being perpendicular to the plane of said pivot arm and a door bumper, said secondary element slidingly engaging said primary element and having means slidingly engaging said arcuate wall, said secondary element having adoor bumper thereon facing in a direction radially opposite to that of the door bumper of the primary element, and means for adjustably securing said primary element to said secondary element.

2. The invention of claim 1 wherein said primary element contains a plurality of downwardly extending projections which interfit with a plurality of upwardly extending projections on the secondary element.

3. The invention of claim 1 wherein said arcuatewall in said primary element encloses an arcuate recess and said means for engaging said arcuate wall comprises a shoulder having arcuate walls which are disposed within said arcuate recess.

4. The invention of claim 1 wherein said arcuate wall extends along the outer perimeter of said primary element and the means engaging said arcuate Wall comprises an elongated arcuate edge on said secondary element.

5. A door stop comprising a primary element and a secondary element, said primary element comprising a pivot arm having an opening formed in one end thereof, an arcuate guide for said secondary element, said arcuate guide comprising a recess having arcuate vertical walls, and a door bumper, said secondary element comprising a tab having vertical arcuate walls extending therefrom, said walls slidingly engaging the vertical walls of said recess, said secondary element having a door bumper thereon facing in a direction radially opposite to that of the door bumper of the primary element, and

means for adjustably securing said primary element to said secondary element.

References Cited in the file of this patent UNITED STATES PATENTS 686,025 Cannon Nov. 5, 1909 2,074,227 Luckey Mar. 16, 1937 2,575,594 Reiner Nov. 20, 1951 2,615,194- Kreiner Oct. 28 1952 FOREIGN PATENTS 508,953 Canada Jan. 11, 1955 

1. A DOOR STOP COMPRISING A PRIMARY ELEMENT AND A SECONDARY ELEMENT, SAID PRIMARY ELEMENT COMPRISING A PIVOT ARM HAVING AN OPENING FORMED IN ONE END THEREOF, AN ARCUATE WALL AT THE END OPPOSITE SAID ONE END FOR GUIDING SAID SECONDARY ELEMENT, SAID WALL BEING PERPENDICULAR TO THE PLANE OF SAID PIVOT ARM AND A DOOR BUMPER, SAID SECONDARY ELEMENT SLIDINGLY ENGAGING SAID PRIMARY ELEMENT AND HAVING MEANS SLIDINGLY ENGAGING SAID ARCUATE WALL, SAID SECONDARY ELEMENT HAVING A DOOR BUMPER THEREON FACING IN A DIRECTION RADIALLY OPPOSITE TO THAT OF THE DOOR BUMPER OF THE PRIMARY ELEMENT, AND MEANS FOR ADJUSTABLY SECURING SAID PRIMARY ELEMENT TO SAID SECONDARY ELEMENT. 